. Annual report of the Board of Regents of the Smithsonian Institution . Fill. 1. buN-spoT AND Hydrogen iia> June 3, 6i> 22™ p. m. Scale: Suns diameter= Fig. 2.—Sun-spot and Hydrogen i7/ji Flocculi. 1908, June 4, Gi 12™ a. in. Scale: Suns diaiiieter= meter. SOLAR VOETICES AND MAGNETISM IN SUN SPOTS ABBOT. 325 appears on the former plate southeast of the spot continues, but is changed inform and less brilliant than before. A strong eruption of peculiar form appearssouthwest of the spot, and bright hydrogen to the northeast. Strong, darktlocculi have also devel
. Annual report of the Board of Regents of the Smithsonian Institution . Fill. 1. buN-spoT AND Hydrogen iia> June 3, 6i> 22™ p. m. Scale: Suns diameter= Fig. 2.—Sun-spot and Hydrogen i7/ji Flocculi. 1908, June 4, Gi 12™ a. in. Scale: Suns diaiiieter= meter. SOLAR VOETICES AND MAGNETISM IN SUN SPOTS ABBOT. 325 appears on the former plate southeast of the spot continues, but is changed inform and less brilliant than before. A strong eruption of peculiar form appearssouthwest of the spot, and bright hydrogen to the northeast. Strong, darktlocculi have also developed at many points around the spot. The eastern endof the long, dark flocculus is still changing, and a projection appears vilest ofits center (see plate 1). A negative taken on the same day at 5* 13 p. m. ) shows further changes in both bright and dark structure, especially inthe region southwest of the spot. A fork has developed in the western end ofthe long dark flocculus, and a small but very dark flocculus appears just westof the spot. Another photograph (No. 417;*), the first exposure of which wasmade at 5 26 p. m., shows a bright eruption west of the spot, wh
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Keywords: ., bookauthorsmithsonianinstitutio, bookcentury1800, bookdecade1840
